摘要
以豆渣为原料,用酸法和碱法结合提取大豆膳食纤维并对其进行微晶化处理。结果表明,豆渣经过酸溶液(pH值3)加热提取1.5h(在95℃,料液比1∶10下),用碱溶液(pH值11)提取2h(在40℃下),可得到纤维素含量为72.04%的大豆膳食纤维。经过质量分数6%的盐酸水解,在92℃下浸泡25min的微晶化处理后,得到的大豆膳食纤维的纤维素含量可达到91.43%,理化性质有较大的改善。
Soybean dietary fiber（SDF） were prepared by the methods of acid hydrolysis and alkaline solution extracting from byproduct of manufacturing bean curd. The optimum conditions for extracting dietary fiber from soybean dregs was to extract at 95 ℃ for 1.5 h,with acid liquor（pH=3） and a 1∶10 sample weight/solvent volume ratio. And after the lye（pH=11,regulated with NaOH） at 40 ℃ for 2 h. Under the above conditions,the cellulose content of SDF was 72.04% . Microcrystallized soybean dietary fiber（MSDF） with 91.43% cellulose content and physical chemistry has been improved after procession with 6% HCL at 92 ℃ for 25 min.
出处
《农产品加工（下）》
2010年第6期51-53,共3页
Farm Products Processing
关键词
豆渣
膳食纤维
微晶化
soybean dregs
dietary fiber
microcrystalline
